diff --git a/agent/context_injector.py b/agent/context_injector.py
index ad50c55..ee6b6b5 100644
--- a/agent/context_injector.py
+++ b/agent/context_injector.py
@@ -51,5 +51,8 @@ class ContextInjector:
             if "today_date" not in request.args:
                 request.args["today_date"] = self.today_date
 
+            # Debug logging
+            print(f"[ContextInjector] Tool: {request.name}, Args after injection: {request.args}")
+
         # Call the actual tool handler
         return await handler(request)
diff --git a/agent_tools/tool_trade.py b/agent_tools/tool_trade.py
index d766b30..4fabec2 100644
--- a/agent_tools/tool_trade.py
+++ b/agent_tools/tool_trade.py
@@ -44,8 +44,10 @@ def buy(symbol: str, amount: int, signature: str = None, today_date: str = None)
     """
     # Step 1: Get environment variables and basic information
     # Get signature (model name) from parameter or fallback to config/env
+    print(f"[buy] Received signature parameter: {signature}")
     if signature is None:
         signature = get_config_value("SIGNATURE")
+        print(f"[buy] Signature from config: {signature}")
     if signature is None:
         raise ValueError("SIGNATURE not provided and environment variable is not set")